Patent application number | Description | Published |
20080232291 | Packet Data Multicast Communication System, a Station, and a Method of Operating the System - A method of operating a packet data multicast communication system which comprises a network or NodeB (BS) and a plurality of mobile stations (MS | 09-25-2008 |
20080253324 | Multiple Channel Communication - A communication device ( | 10-16-2008 |
20080267136 | Allocation of Access Slots to Mobile Stations in Order to Count the Number of Stations Interested in a Mbms (Multimedia Broadcast/Multicast Service) - A method of operating a radio network, such as UMTS or cdma2000, which comprises at least one primary station (PS), i.e. and access point or bare station, and a plurality of secondary stations (SSI, SS | 10-30-2008 |
20080268786 | Radio Station and Method of Operating a Radio Station - A first radio station ( | 10-30-2008 |
20080274763 | Transmit Power Control in a Radio Station - A radio station ( | 11-06-2008 |
20080317159 | Radio Communication System, a Radio Station, and Method of Transmitting Data - A radio communication system has a plurality of transmission formats available for transmitting data signals, and a pilot signal is transmitted during the transmission of data to enable channel estimation. The transmit power of the pilot signal is varied depending on the current transmission format of the data, and is reduced in the periods between data transmissions. | 12-25-2008 |
20090016472 | METHOD AND APPARATUS FOR SIGNAL QUALITY ESTIMATION - A receiver ( | 01-15-2009 |
20090059830 | METHOD OF SIGNALLING, A COMMUNICATION SYSTEM AND A COMMUNICATION EQUIPMENT - First and second data is transmitted simultaneously by modulating a first set of signal constellation points, corresponding to the first data, with second data thereby creating a second set of constellation points. The second set of constellation points comprises two subsets corresponding to two values of the first data. The constellation points are selected such that the minimum distance between the first and second subsets is not less than the minimum distance between the constellation points of the first set of constellation points. | 03-05-2009 |
20090075599 | SIGNAL QUALITY REPORTING - A radio station ( | 03-19-2009 |
20090104879 | METHOD OF OPERATING A COMMUNICATION SYSTEM, A RADIO STATION, AND A RADIO COMMUNICATION SYSTEM - A radio communication system has a plurality of transmission formats available for the transmission of data signals by a sending station, and a pilot signal is transmitted to enable channel estimation by the receiving station. A receiving station transmits a control signal indicating the transmission formats that the sending station may use for transmitting the data signals. The sending station selects one of the indicated transmission formats for transmitting a data signal and derives a transmission power level for the pilot signal from the control signal. The transmission power level of the pilot signal may be independent of the selected transmission format, or may depend on selected transmission format. | 04-23-2009 |
20090104901 | TIME VARYING SIGNAL QUALITY REPORTING - A radio station ( | 04-23-2009 |
20090131093 | Scheduling of Uplink Data Transmission Using Different Ue-Ids - A radio terminal adjusts its data transmit power in response to received power control commands which specify a maximum transmit power level. The commands may be addressed to an individual radio terminal by means of a first address, or addressed to a group of radio terminals by means of a second address. In order that the data transmit power of an individual radio terminal is not disrupted by the commands addressed to a group, the radio terminal operates in two states. In the first state the radio terminal responds to commands comprising the first address and does not respond to commands comprising the second address. In the second state the radio terminal responds to commands comprising the second address. The radio terminal transfers from the first state to the second state in response to receiving a command comprising the first address and a predetermined value. On entering the second state the transmit power is set in accordance with the last- received command comprising the second address, thereby avoiding the need for transmission of a further command comprising the second address before transmission in the second state can proceed. Alternatively, or additionally, transmission rate may be controlled in the same manner. | 05-21-2009 |
20100099452 | RADIO COMMUNICATION SYSTEM - In a radio communication system having a primary station and a plurality of secondary stations, the power of uplink and downlink channels between the primary station and a secondary station is controlled in a closed loop manner by each station transmitting power control commands to the other station. In response to these commands the receiving station adjusts its output power in steps. | 04-22-2010 |
20100118782 | METHOD FOR COMMUNICATING IN A MIMO CONTEXT - The present invention relates to a method for communicating from a primary station with an array of transmit antennas to a secondary station on a downlink channel, said method comprising steps of, at the primary station, (a) configuring the downlink channel, step (a) being subdivided into steps of: (a2) computing a precoding to be applied during a corresponding transmission from the primary station to the secondary station for each of an array of transmit antennas; (a3) applying a reversible transform N to the precoding, thus ascertaining a set of precoding coefficients substantially representative of the precoding in a transform domain; (a4) computing a set of parameters comprising at least one parameter, said parameter being substantially representative of the coefficients obtained at step (a3); (a5) signaling the set of parameters to the secondary station; (b) transmitting data to the secondary station substantially according to the precoding computed at step (a2). | 05-13-2010 |
20100118783 | METHOD FOR PROVIDING PRECODING INFORMATION IN A MULTI-USER MIMO SYSTEM - The present invention relates to a method for communicating in a network having a primary station and a plurality of secondary stations, said method comprising a step of, at the primary station, (a) configuring at least one downlink channel from the base station to a first secondary station, step (a) comprising (a1) signalling a first set of at least one parameter indicative of precoding applied to a first transmission from the base station to the first secondary station; (a2) signalling a second set of at least one parameter indicative of precoding applied to a second transmission from the base station to at least one second secondary station, wherein said step (a2) is carried out so that the second set of parameters contains less information than the first set of parameters. | 05-13-2010 |
20100118998 | METHOD AND DEVICE FOR ALLOCATING RESOURCES IN AN OFDM NETWORK - A radio station comprises means for allocating resources for communication with at least one other station, and including means for mapping data to be transmitted from at least the radio station to the at least one other station, and means for applying a cyclic shift to the data mapping, wherein this cyclic shift is adjusted depending on the number of data blocks to be mapped. A possible implementation concerns the mapping of the DVRB (Distributed Virtual Resource Block) in OFDM. | 05-13-2010 |
20100135230 | METHOD FOR TRANSMITTING CHANNEL QUALITY REPORT IN A DISCONTINUOUS TRANSMISSION SCHEME, PRIMARY AND SECONDARY STATIONS THEREFOR - The present invention relates to a method for transmitting channel quality reports periodically from a secondary station to a primary station, wherein transmission of a control channel is carried out discontinuously with a predetermined periodic transmission phase, said method comprising the steps of (a) scheduling transmission of a transmission sequence of channel quality reports of at least a first type and a second type according to a predetermined pattern, (b) estimating the number of channel quality reports of the second type scheduled during the transmission phases of a predetermined time window, (c) amending the transmission sequence by replacing at least one channel quality report scheduled to be of the first type with a channel quality report of the second type if the number of second type channel quality reports scheduled during the transmission phases of the predetermined time window is below a predetermined threshold (d) transmitting the amended sequence to the primary station. | 06-03-2010 |
20100169731 | METHOD AND APPARATUS FOR TRANSMITTING DATA, AND A COMMUNICATION SYSTEM - A communication system employs discontinuous transmission to create gaps in transmission during which a transmitting device ( | 07-01-2010 |
20100172281 | METHOD FOR COMMUNICATING - The present invention relates to a method for communicating data in a telecommunication network comprising at least one primary station, and a plurality of secondary stations, comprising at a secondary station the step of transmitting a feedback signal to the primary station on a random access channel, wherein the feedback signal being of—a dedicated type related to at least one point to point link between the considered secondary station and the primary station, or—a common type related to multicast links, wherein, depending on the transmission, the second part being related to a first type of multicast link or to a second type of multicast link. | 07-08-2010 |
20100202384 | METHOD FOR TRANSMITTING DATA IN A NETWORK - The present invention relates to a method for transmitting data from a primary station to a secondary station, comprising at the primary station signalling to the secondary station that a data message is to be received, and at the primary station transmitting the data message, wherein the time of transmission of the data message relative to the time of the signalling depends on a state of the secondary station. | 08-12-2010 |
20100203915 | INDICATING E-DCH RESOURCES FOR E-RACH - In UMTS WCDMA a new RACH-based uplink is being discussed. The request for uplink transmission resource is made using a mechanism based on the conventional RACH. The main difference from the conventional RACH is that the data transmission uses a high-speed uplink packet data channel, known as Enhanced Dedicated Channel (E-DCH), instead of a single short message associated directly with the RACH preamble. One proposed scheme for indicating the E-DCH resources to be used creates a link between the values of each of a group of multiple signatures sent on the AICH (to acknowledge the E-RACH access) and a specific set of E-DCH parameters defined in a table. We propose to signal the set of resources to be used independently from acknowledging the E-RACH access. One possible method is to transmit information in the unused portion of the AICH (corresponding to 1024 chips every slot) indicating the resource set. | 08-12-2010 |
20100220647 | METHOD OF OPERATING A COMMUNICATION DEVICE AND SYSTEM,A COMMUNICATION DEVICE AND A SYSTEM INCLUDING THE COMMUNICATION DEVICE - A communication system, such as UMTS, comprises a scheduler ( | 09-02-2010 |
20100234011 | METHODS FOR TRANSMITTING DATA IN A MOBILE SYSTEM AND RADIO STATIONS THEREFOR - The present invention relates to a method for transmitting a plurality of data streams from a primary station to a secondary station on a plurality of transmission beams, said method comprising: at the secondary station measuring the channel quality corresponding to each transmission beam, and signalling at a first rate to the primary station in a first indicator a CQI report representative of the quality of the beams, and signalling at a second rate, greater than the first rate, in a second indicator a number of data streams that can be transmitted on the transmission beams; at the primary station transmitting the data streams on the basis of the first and second indicators. | 09-16-2010 |
20100265906 | METHOD OF EXCHANGING DATA BETWEEN A BASE STATION AND A MOBILE STATION - The present invention relates to a method of exchanging data between a first station and a second station, said data being exchanged in packets. Said method comprises the steps of: receiving a packet from the second station; decoding said packet; —determining whether to transmit to the second station a resource allocation message on a signalling channel; if a said resource allocation message is transmitted, further transmitting to the second station a first indicator signal on an indicator channel; if both the decoding has not been successful and the said resource allocation message is not transmitted, transmitting to the second station a second indicator signal on the indicator channel. | 10-21-2010 |
20100298018 | ADDRESSING AVAILABLE RESOURCES FOR HSDPA ACCESSES - A method of indicating to a secondary station a set of at least one available transmission resource among a predetermined plurality of transmission resources, each set being described by a plurality of parameters, said method comprising the steps of:—signalling to the secondary station an association between a control signalling channel and at least one parameter describing a set of transmission resources; coding into an address at least one remaining parameter from the plurality of parameters describing the said set of transmission resources;—transmitting the address to the secondary station using the said control signalling channel. | 11-25-2010 |
20100302934 | POWER RAMPING FOR RACH - The present invention relates to a method for requesting access to a resource, said method comprising a secondary station transmitting an access preamble to a primary station, upon failure of correct transmission of the access preamble, the secondary station starting a first power ramping scheme for transmitting the access preamble, upon failure of correct transmission of the access preamble with the first power ramping scheme, the secondary station transmitting a second access preamble with a second power ramping scheme being different from the first power ramping scheme. | 12-02-2010 |
20100309856 | METHOD FOR SIGNALLING RANDOM ACCESS CHANNELS - In UMTS WCDMA a new RACH-based uplink is being discussed. The resources defined for this new E-RACH need to be signalled to the UE. This should avoid disturbing the signalling to existing terminals, i.e. that are not aware of E-RACH. This could be done for E-RACH by repeating the kind of signalling defined for R99 RACH and transmitted on the BCH (Broadcast Control Channel). However, this would imply a significant extra load on the BCH, which is undesirable. The invention is based on the recognition that E-DCH resources can be defined efficiently at least partly with reference to the R99 RACH resources. This can be done in such a way that no additional signalling is required on the BCH. | 12-09-2010 |
20100311429 | COORDINATED CHANGE OF TRANSMISSION PARAMETERS FOR DATA AND CONTROL INFORMATION - The present invention relates to a method for transmission of control information from a primary station to at least one secondary station, comprising the step of transmitting with a first set of control information parameters control information corresponding to data transmission with a first set of data parameters and transmitting with a second set of control information parameters control information corresponding to data transmission with a second set of data parameters, wherein at least one control information parameter has a difference in value between the two sets of control information parameters, said difference in value having a dependency on the difference between the value of a data parameter in the first set of data parameters and the value of the data parameter in the second set of data parameters, said data parameter being a different parameter from the at least one control information parameter. | 12-09-2010 |
20110021206 | METHOD FOR COMMUNICATING IN A MOBILE NETWORK - The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising configuring each secondary station to search at least one of a plurality of search spaces having a first structure, said first structure consisting of at least a first number of resource sets having a first size, where at least one resource set might be used to transmit a message to the considered secondary station, changing the search space structure to a second structure different from the first structure in response to a signalling message. | 01-27-2011 |
20110021229 | METHOD FOR COMMUNICATING IN MOBILE SYSTEM - The present invention relates to a method for communicating from a primary station to a plurality of secondary station, comprising the step of at the primary station allocating a resource to the secondary stations over the time on the basis of a hash function, wherein the hash function is such that the probability that two secondary stations are allocated common resources in two sub frames substantially equals the product of the probability that the two secondary stations are allocated a common resource in the first subframe and the probability that the two secondary stations are allocated a common resource in the second subframe. | 01-27-2011 |
20110026490 | METHOD FOR COMMUNICATING AND RADIO STATION THEREFOR - The present invention relates to method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, and transmitting to the primary station a request for an uplink transmission resource if a request condition is satisfied, said request condition being based on at least one previous grant of uplink transmission resource, (b) at the primary station, granting to the secondary station an uplink transmission resource to be used. | 02-03-2011 |
20110038300 | METHOD FOR SIGNALLING RESOURCES TO A RADIO STATION AND RADIO STATION THEREFOR - The present invention relates to a method for signaling a plurality of transmission parameters for a plurality of communications between a primary station and a plurality of respective secondary stations in a multi-user MIMO mode, comprising the steps of (a) signaling the value of at least one first transmission parameter in a multicast message to at least two secondary stations, the value of the first transmission parameter being common to the respective communications corresponding to the at least two secondary stations, and (b) signaling the value of at least one second transmission parameter in a plurality of unicast messages to each secondary stations of the plurality of secondary stations. | 02-17-2011 |
20110039500 | METHOD FOR COMMUNICATING IN A NETWORK AND RADIO STATIONS THEREFOR - The present invention relates to a method for communicating between a primary station and at least one secondary station, comprising the steps of (a) at the primary station, requesting the secondary station to transmit channel quality information representative of the channel quality and, (b) at the secondary station, responsive to the request of step (a), transmitting to the primary station the channel quality information, wherein step (b) comprises substep (b1) wherein the secondary station further transmits with the channel quality information an indication of a secondary station buffer status. | 02-17-2011 |
20110058539 | METHOD FOR COMMUNICATING AND RADIO STATION THEREFOR - The present invention relates to a method for communicating between a primary station and a secondary station comprising (a) at the secondary station, upon arrival of a data packet to be transmitted to the primary station, buffering said data packet in a buffer, (b) at the secondary station, after the expiration of a time period starting at arrival of the data packet, transmitting to the primary station a request for an uplink transmission resource if a grant of uplink transmission resource is not received during the said time period, (c) at the primary station, granting to the secondary station an uplink transmission resource. | 03-10-2011 |
20110085566 | METHOD FOR COMMUNICATING IN A NETWORK AND RADIO STATIONS ASSOCIATED - The present invention relates to a method for communicating in a network comprising a primary station and at least one secondary station, said secondary station comprising a buffer containing data packets to be transmitted to the primary station, the method comprising the step of the secondary station transmitting an indication of the buffer status to the primary station, said indication comprising information about history of said buffer. | 04-14-2011 |
20120082080 | METHOD AND DEVICE FOR SENSITIVITY COMPENSATION - When a radio station terminates a first service on a first radio frequency channel and selects a second radio frequency channel for engaging in a second service, a time delay is inserted after the termination of the first service and before selecting the second radio frequency channel or before engaging in the second service. The time delay is dependent on the state of the radio station and/or a characteristic of the second service. | 04-05-2012 |
20130028242 | ARQ SYSTEM WITH STATUS AND PACKET ACKNOWLEDGEMENT - A communication system comprises a downlink indicator channel (DL | 01-31-2013 |
20130044715 | POWER RAMPING FOR RACH - The present invention relates to a method for requesting access to a resource, said method comprising a secondary station transmitting an access preamble to a primary station, upon failure of correct transmission of the access preamble, the secondary station starting a first power ramping scheme for transmitting the access preamble, upon failure of correct transmission of the access preamble with the first power ramping scheme, the secondary station transmitting a second access preamble with a second power ramping scheme being different from the first power ramping scheme. | 02-21-2013 |
20130155985 | METHOD FOR COMMUNICATING IN MOBILE SYSTEM - The present invention relates to a method for communicating from a primary station to a plurality of secondary station, comprising the step of at the primary station allocating a resource to the secondary stations over the time on the basis of a hash function, wherein the hash function is such that the probability that two secondary stations are allocated common resources in two subframes substantially equals the product of the probability that the two secondary stations are allocated a common resource in the first subframe and the probability that the two secondary stations are allocated a common resource in the second subframe. | 06-20-2013 |
20130258893 | RADIO COMMUNICATION STATION AND RADIO COMMUNICATION DEVICE, AND METHODS OF OPERATING SAME - A radio communication station in a radio communication system having a plurality of radio communication devices, derives a quantisation parameter and transmits the quantisation parameter to the radio communication devices for use in subsequent quantisation of a channel state metric. The radio communication devices receive the quantisation parameter, determine a channel state metric, quantise the determined channel state metric by applying quantisation ranges indicated by the quantisation parameter, determine a data value indicative of the quantised channel state metric, and transmit a signal conveying the determined data value as a random access transmission. | 10-03-2013 |
20130279445 | METHOD FOR COMMUNICATING IN A NETWORK, A SECONDARY STATION AND A SYSTEM THEREFOR - The present invention relates to a method for communicating in a network, comprising
| 10-24-2013 |
20130324053 | METHOD OF SIGNALLING INFORMATION - The present invention relates to a method for transmission of control information from a primary station to at least one secondary station, comprising the step of transmitting with a first set of control information parameters control information corresponding to data transmission with a first set of data parameters and transmitting with a second set of control information parameters control information corresponding to data transmission with a second set of data parameters, wherein at least one control information parameter has a difference in value between the two sets of control information parameters, said difference in value having a dependency on the difference between the value of a data parameter in the first set of data parameters and the value of the data parameter in the second set of data parameters, said data parameter being a different parameter from the at least one control information parameter. | 12-05-2013 |
20140106762 | FORMAT ADAPTATION OF A CONTROL CHANNEL FOR DISCONTINUOUS DATA TRANSMISSION - In a radio communication system ( | 04-17-2014 |
20140133384 | METHOD FOR SIGNALLING RESOURCES TO A RADIO STATION AND RADIO STATION THEREFOR - The present invention relates to a method for signaling a plurality of transmission parameters for a plurality of communications between a primary station and a plurality of respective secondary stations in a multi-user MIMO mode, comprising the steps of | 05-15-2014 |
20140140303 | METHOD FOR SIGNALLING RANDOM ACCESS CHANNELS - In UMTS WCDMA a new RACH-based uplink is being discussed. The resources defined for this new “E-RACH” need to be signalled to the UE. This should avoid disturbing the signalling to existing terminals, i.e. that are not aware of E-RACH. This could be done for E-RACH by repeating the kind of signalling defined for R99 RACH and transmitted on the BCH (Broadcast Control Channel). However, this would imply a significant extra load on the BCH, which is undesirable. | 05-22-2014 |
20140146774 | METHODS FOR TRANSMITTING DATA IN A MOBILE SYSTEM AND RADIO STATIONS THEREFOR - The present invention relates to a method for transmitting a plurality of data streams from a primary station to a secondary station on a plurality of transmission beams, said method comprising: at the secondary station measuring the channel quality corresponding to each transmission beam, and signalling at a first rate to the primary station in a first indicator a CQI report representative of the quality of the beams, and signalling at a second rate, greater than the first rate, in a second indicator a number of data streams that can be transmitted on the transmission beams; at the primary station transmitting the data streams on the basis of the first and second indicators. | 05-29-2014 |
20140204884 | METHOD FOR COMMUNICATING IN A NETWORK AND RADIO STATIONS ASSOCIATED - The present invention relates to a method for communicating in a network comprising a primary station and at least one secondary station, said secondary station comprising a buffer containing data packets to be transmitted to the primary station, the method comprising the step of the secondary station transmitting an indication of the buffer status to the primary station, said indication comprising information about history of said buffer. | 07-24-2014 |
20140219215 | METHOD OF EXCHANGING DATA BETWEEN A BASE STATION AND A MOBILE STATION - The present invention relates to a method of exchanging data between a first station and a second station, said data being exchanged in packets. Said method comprises the steps of:
| 08-07-2014 |